Instruments

1936 — Approx. 40 pages. Features: The Metadyne system of electric motor control; Engineers' Experiences; Electrical Pyrometers; Marine Control Gear; Power Factor Meters; 25-line Private Automatic Telephone Exchange; Electrical Equipment in a Modern Store; Making Agreements for Power Supply; Reading Switchboard Instruments from a distance; Development of X-rays in Dental Practice; Selection of Factory Substation Switchgear; Mercury switches and their applications; Ballast Resistances; Electrical Progress Overseas; Opportunities in the Cinema Industry. Well-worn. Bottom staple has torn through cover else no major defects. Unmarked. Blue and Orange front cover features advertisement for Callender Cables showing the vessel "Stirling Castle" equipped with 112 miles of their cable. Book